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authorJohannes Schindelin <Johannes.Schindelin@gmx.de>2007-12-18 19:32:14 (GMT)
committerJunio C Hamano <gitster@pobox.com>2007-12-20 09:10:39 (GMT)
commiteab9a40b6dd5c1c571b1deb264133db47bb4794d (patch)
tree792cbe7fec4bf5018d85bbef4d98d2b24db5fd96 /diff.c
parent74f6b03c5c8fceef416de9f9a18e5d64712b6d96 (diff)
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Teach diff machinery to display other prefixes than "a/" and "b/"
With the new options "--src-prefix=<prefix>", "--dst-prefix=<prefix>" and "--no-prefix", you can now control the path prefixes of the diff machinery. These used to by hardwired to "a/" for the source prefix and "b/" for the destination prefix. Initial patch by Pascal Obry. Sane option names suggested by Linus. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'diff.c')
-rw-r--r--diff.c25
1 files changed, 17 insertions, 8 deletions
diff --git a/diff.c b/diff.c
index e26584c..61fd492 100644
--- a/diff.c
+++ b/diff.c
@@ -290,9 +290,10 @@ static void emit_rewrite_diff(const char *name_a,
const char *name_b,
struct diff_filespec *one,
struct diff_filespec *two,
- int color_diff)
+ struct diff_options *o)
{
int lc_a, lc_b;
+ int color_diff = DIFF_OPT_TST(o, COLOR_DIFF);
const char *name_a_tab, *name_b_tab;
const char *metainfo = diff_get_color(color_diff, DIFF_METAINFO);
const char *fraginfo = diff_get_color(color_diff, DIFF_FRAGINFO);
@@ -309,9 +310,9 @@ static void emit_rewrite_diff(const char *name_a,
diff_populate_filespec(two, 0);
lc_a = count_lines(one->data, one->size);
lc_b = count_lines(two->data, two->size);
- printf("%s--- a/%s%s%s\n%s+++ b/%s%s%s\n%s@@ -",
- metainfo, name_a, name_a_tab, reset,
- metainfo, name_b, name_b_tab, reset, fraginfo);
+ printf("%s--- %s%s%s%s\n%s+++ %s%s%s%s\n%s@@ -",
+ metainfo, o->a_prefix, name_a, name_a_tab, reset,
+ metainfo, o->b_prefix, name_b, name_b_tab, reset, fraginfo);
print_line_count(lc_a);
printf(" +");
print_line_count(lc_b);
@@ -1212,8 +1213,8 @@ static void builtin_diff(const char *name_a,
const char *set = diff_get_color_opt(o, DIFF_METAINFO);
const char *reset = diff_get_color_opt(o, DIFF_RESET);
- a_one = quote_two("a/", name_a + (*name_a == '/'));
- b_two = quote_two("b/", name_b + (*name_b == '/'));
+ a_one = quote_two(o->a_prefix, name_a + (*name_a == '/'));
+ b_two = quote_two(o->b_prefix, name_b + (*name_b == '/'));
lbl[0] = DIFF_FILE_VALID(one) ? a_one : "/dev/null";
lbl[1] = DIFF_FILE_VALID(two) ? b_two : "/dev/null";
printf("%sdiff --git %s %s%s\n", set, a_one, b_two, reset);
@@ -1242,8 +1243,7 @@ static void builtin_diff(const char *name_a,
if ((one->mode ^ two->mode) & S_IFMT)
goto free_ab_and_return;
if (complete_rewrite) {
- emit_rewrite_diff(name_a, name_b, one, two,
- DIFF_OPT_TST(o, COLOR_DIFF));
+ emit_rewrite_diff(name_a, name_b, one, two, o);
o->found_changes = 1;
goto free_ab_and_return;
}
@@ -2020,6 +2020,9 @@ void diff_setup(struct diff_options *options)
else
DIFF_OPT_CLR(options, COLOR_DIFF);
options->detect_rename = diff_detect_rename_default;
+
+ options->a_prefix = "a/";
+ options->b_prefix = "b/";
}
int diff_setup_done(struct diff_options *options)
@@ -2291,6 +2294,12 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
else if (40 < options->abbrev)
options->abbrev = 40;
}
+ else if (!prefixcmp(arg, "--src-prefix="))
+ options->a_prefix = arg + 13;
+ else if (!prefixcmp(arg, "--dst-prefix="))
+ options->b_prefix = arg + 13;
+ else if (!strcmp(arg, "--no-prefix"))
+ options->a_prefix = options->b_prefix = "";
else
return 0;
return 1;